Stop and measuring cock.



PATENTED FEB. 25, 1908.

P. VOOKE. STOP AND MEASURING COOK.

APPLICATION FILED SEPT. 26, 1907- amaz- FRANZ VOGKE, OFBERLIN-SCHONEBERG, GERMANY.

STOP AND MEASURING COCK.

Specification of Letters Patent.

Patented Feb. 25, 1908.

Application filed September 26.1907. Serial No. 394.752-

To all whom it may concern:

Be it known that I, FRANZ V OOKE, subject of German Emperor, residing atBerlin- Schoneberg, Germany, have invented certain new and usefulImprovements in Stop and Measuring Cocks, of which the following is aspecification.

This invention relates to a stop and measuring cock having a measuringchamber alterable in size by means of a piston and the object of theinvention is to provide a cock whereby two different fluids, subjectedto different pressures, and one of which is measured, can be drawn ofleither mixed or separately.

The invention comprises the features of construction and combination andarrangement of parts hereinafter described and particularly pointed outin the claims.

The invention is illustrated in the accompanying drawing in which:

Figure 1 is a vertical longitudinal section and Fig. 2 is a section onthe line A-B of Fig. l.

In this drawing 1 is the casing of the cock having a funnel like inletpipe 2 and a second inlet pipe 3 situated below the inlet pipe 2.

4 is an air inlet in the upper part of the casing and 5 is the outletnozzle having two passages 6 and 7 therein, one located above the other.The lower passage 7 is directly opposite the inlet pipe 3. The plugcomprises a solid lower portion 8 having a passage 9 extendingdiametrically therethrough and adapted to connect the inlet pipe 3 withthe lower passage 7 in the nozzle 5 a measuring chamber 10 and a handle11.

12 is-a long narrow slot in the walls of the measuring chamber havingits length equal to the height of the adjacent part of the inlet pipe 2and 13 is an oblong slot in the upper part of the walls of the chamberadapted to register with the air inlet 4 to admit air to the chamber.

14 is an oblong outlet opening in the lower part of the chamber whosevertical center is in the same vertical plane as the center of slot 13and adapted to register with the upper passage 6 in the nozzle 5 topermit the contents of the chamber to flow through said passage. It willbe noted that the left hand wall of the opening 14 is in the samevertical plane as left hand wall of the passage 9 and that the diameterof said passage is just half the long diameter of the opening 14, sothat when the cock is turned to permit .the

fluids to flow through the nozzle, the opening 14 will uncover thepassage 6 before the passage 7 thus the chamber 10 may be emptied whilethe passages 3 and 7 are disconnected.

15 is a stuffing boX in the top of the plug and 16 is a movable pistonpassing through said stuffing box into the chamber whereby the capacityof said chamber may be varied.

The cock is operated in the following manner. The fluid to be measuredflows through the inlet pipe 2, through the slot 12 into the measuringchamber 10, from which the air is forced back in bubbles through thepipe 2.

If the plug is then turned round a certain an' gle, by means of thehandle 11, the slot 12 communicating with the pipe2 is closed; on theother hand, the opening 14 is brought in front of the passage 6 while atthe same time communication with the air is effected by means of thehitherto closed hole 4 and the slot 13 so that the fluid can escape fromchamber 10 through the passage 6. If the plug is turned still further,the inlet and discharge passages 3 and 7 are brought into con- .nectionby means of the passage 9 in this way the second fluid can then be drawnoff 1n.

any desired quantity. When the plug is in this latter position, amixture is obtained consisting of a measured quantity of one fluid andany requisite quantity of the other. When, however, the plug is in itscentral position, shown in Fig. 1, each fluid can be drawn off by itselfby turning the plug sufficiently to the right or left from this positionand replacing it in its central position.

I claim as my invention:

1. A measuring cock comprising a casing having inlets 2 and 3 and twoout-lets, a plug having a chamber therein and means for connecting thechamber with one of the outlets while the other outlet is closed or forsimultaneously connecting the two outlets one with the chamber and onewith the inlet 3.

2. A measuring cock comprising a casing having two inlets and twooutlets, a plug having a chamber therein having an inlet and an outletopening in its walls and a diametrical passage below the chamber, theoutermost portionsof the left hand walls of said passage and outletopening of the chamber being in the same vertical plane and said passagehaving a diameter half that of the long diameter of the outlet openingof the chamber and a piston movable in the chamber.

3. A measuring cock comprising a casing, an upper inlet pipe, a lowerinlet pipe, a nozzle having an upper and a lower outlet passage therein,said lower passage being diametrically opposite the lower pipe, a plugin the casing having a measuring chamber therein, a piston movable insaid chamber,

saidplug having a passage extending through its lower part below thechamber and adapted to connect the lower inlet pipe with the loweroutlet passage and the walls of the chamber having an inlet slot and anoblong outlet opening therein, said outlet opening being situated so asto uncover the upper passage in the nozzle before the lower inlet pipeis connected with the lower outlet passage by the passa e in the plug.

In testimony whereof I affiX my signature in presence of two witnesses.

FRANZ VOOKE.

Witnesses WOLDEMAR HAUPT, HENRY HASPER.

